| 摘要: |
| 染色体数目分析是现代系统与进化植物学研究十分重要和不可缺少的环节。在蕨类植物中,使用根尖或孢子母细胞作为实验材料的经典方法在取样时往往存在困难。该文以3种桫椤科桫椤属植物为例,探寻适合蕨类植物染色体数目研究的材料。由于取样时没有时间、季节和数量上的限制,我们推荐配子体作为蕨类植物染色体数目研究的实验材料。 |
| 关键词: 桫椤属, 染色体计数, 桫椤科, 配子体, 实验材料 |
| DOI：10.11931/guihaia.gxzw201909041 |
| 分类号:Q942.5; Q2-33 |
| 文章编号:1000-3142(2021)01-0081-04 |
| Fund project:云南省教育厅科学研究基金(2015C072Y)[Supported by the National Natural Science Foundation of China(31500458); Scientific Research Fund of Yunnan Province Education Department(2015C072Y)]。 |
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| A good material for chromosome counts of ferns |
|
WANG Zijuan1*, XIANG Jianying2, CHENG Xiao3
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1. College of Agriculture and Biological Science, Dali University, Dali 671003, Yunnan, China;2. Yunnan Academy of Biodiversity,
Southwest Forestry University, Kunming 650204, China;3. Key Laboratory of Economic Plants and Biotechnology, Kunming
Institute of Botany, Chinese Academy of Sciences, Kunming 650204, China
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| Abstract: |
| Analysis of chromosome numbers is a very important and indispensable step in modern systematic and evolutionary botany research. In ferns, the classical methods using root tips or sporocytes as materials often have difficulties when sampling. In this paper, three species of Alsophila(Cyatheaceae)were taken as examples to explore the materials suitable for the study of chromosome numbers of ferns. As there are no time, season and quantitative restrictions in sampling, gametophytes were recommended as experimental materials for the study of chromosome numbers of ferns. |
| Key words: Alsophila, chromosome count, Cyatheaceae, gametophyte, experimental material |
